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Unread 01-13-2015, 10:03 PM   #1
M35A2
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1995 XJ Cherokee 
 
Join Date: Jun 2012
Location: Monrovia, California
Posts: 732
Windshield Wiper Help

Did some research here, did some testing, just want a second opinion, or third, or fourth

While I was doing the Howell conversion, I tackled the windshield washer fluid into the cabin issue. Turns out that when the po painted the pig, they removed the windshield squirters and let the plumbing fall into the cowl area, what a biatch to fish out, gimmie an XJ any day!!

Well, after I sorted that issue out, I figured i'd try the wiper issue. They only work on the high setting and do not "park" I was initially thinking the switch was junk, but, if I un-plug the intermittent module, they don't work at all. When I have the module in series, you can feel it click when the position of the switch is changed. If you move the switch from off to int, the module clicks but no wipers. From int to low it clicks, but no wipers. From low to high it clicks and then the wipers move, but in the low speed.

I THINK it's the wiper motor or circuit to the motor from the module. Any pointers out there to help confirm my diagnosis?

BTW, How on earth does one change a wiper motor on one of these?

Oh yeah, since I can't figure out how to add a second vehicle in my profile, this is a 1989 YJ, 4.2, auto, A/C, hard top.

Thanks all!

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Unread 01-13-2015, 10:24 PM   #2
Chrisnvegas
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1992 YJ Wrangler 
 
Join Date: Dec 2012
Location: The Desert, Nv
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Im working on my wipers right now. I just ordered a control module. Plug the two plugs together
With the module removed. If it's the module, everything should work normal except the delay.
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Unread 01-13-2015, 10:29 PM   #3
Luuca
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2005 LJ Wrangler 
 
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Check Your Ground!!!
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Unread 01-13-2015, 11:32 PM   #4
M35A2
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1995 XJ Cherokee 
 
Join Date: Jun 2012
Location: Monrovia, California
Posts: 732
Sorry, thought i wrote that i did the module bypass, i just said i u plugged jt. I did plug the two harnesses together, still only has low speed in the high position. Where is the ground for the wipre circuit located? It is a birdsnest under the dash!
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Unread 01-13-2015, 11:36 PM   #5
Luuca
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2005 LJ Wrangler 
 
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Quote:
Originally Posted by M35A2 View Post
Sorry, thought i wrote that i did the module bypass, i just said i u plugged jt. I did plug the two harnesses together, still only has low speed in the high position. Where is the ground for the wipre circuit located? It is a birdsnest under the dash!
http://bit.ly/1Cigcy1

On my LJ, the wiper motor ground is spliced into the driver's side headlight ground on the grill shell. Ask me how I found out.

If you are in there at the motor, look at some of the diagrams and make a temporary ground wire to the black wire. If they work as intended, make it permanent.
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Unread 01-14-2015, 08:14 AM   #6
JeeperDon
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1993 YJ Wrangler 
 
Join Date: Jan 2005
Location: Albuquerque, NM
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Quote:
Originally Posted by M35A2 View Post
They ... do not "park"
Parking is a function of a second +12v line to a switch inside the wiper motor assembly. When +12 is on that line, it continues to run the motor after the column switch is off until that internal switch goes off by the wipers getting to the park position.

Here is the wiring page PDF from the FSM.
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